Suitable Glass-Ceramic Sealant for Planar Solid-Oxide Fuel Cells

Autor:	Huesup Song, Goo-Dae Kim, Sung-Bum Sohn, Gyeung-Ho Kim, Se-Young Choi
Rok vydání:	2004
Předmět:	Glass-ceramic Materials science Sealant Non-blocking I/O Oxide Mineralogy Electrolyte Chemical reaction law.invention chemistry.chemical_compound chemistry Chemical engineering law Thermal Materials Chemistry Ceramics and Composites Crystallization
Zdroj:	Journal of the American Ceramic Society. 87:254-260
ISSN:	1551-2916 0002-7820
DOI:	10.1111/j.1551-2916.2004.00254.x
Popis:	Various glass-ceramics were prepared based on the BaO-Al 2 O 3 -B 2 O-SiO 2 system with the addition of La 2 O 3 , ZrO 2 , or NiO in an attempt to develop a suitable sealant for planar solid-oxide fuel cells operating at 800°C. To estimate the applicability of these glasses as suitable sealants, their thermal and chemical stabilities as well as the crystallization behavior and bonding characteristics of their parent glasses were investigated. The thermal properties and crystallization behavior of the parent glasses were dependent on the type of additive used, and the bonding characteristics were strongly influenced by the B 2 O 3 /SiO 2 value in the glass composition. Observation of microstructural change and chemical reaction at the glass-ceramic/electrolyte interface confirmed that the prepared glass-ceramics possessed long-term stability during heat treatment at the operation temperature for up to 1000 h.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::113a9b38d1e37aab12d30693507f6503 https://doi.org/10.1111/j.1551-2916.2004.00254.x Zobrazit plný text záznamu Plný text ve formátu PDF